问题详情

What did Martin Kemp do to Bianca Sfroza？

A．He refused to believe it to be a Leonardo when seeing the digital image.

B．He examined the layers with the help of high-resolution multispectral scans.

C．He collected enough evidence to make all other scholars convinced.

D．He found the identification of the drawing, which was written down in Sforziad.

请帮忙给出正确答案和分析，谢谢！